"University of California at Berkeley. Lawrence Hall of Science." . . . . "Experiments." . . "Neu." . . "Aigua." . . . . . . . . . . . . . . . . . . . . "Dry ice investigations" . . "Dry ice investigations : teacher's guide"@en . . "Dry ice investigations : teacher's guide" . . . "Great Explorations in Math and Science." . .